| Esrg Group Limited | Professional & scientific | 2013 |
| ESS K9 Security & Support Services Ltd | Agriculture & fishing | 2017 |
| Essar Estate Ltd | Real estate | 2023 |
| Essem Electrical Contractors LLP | | 2023 |
| Essence AI Ltd | Information & communication | 2025 |
| Essence Boutique Limited | Wholesale & retail | 2018 |
| Essency Ltd | Information & communication | 2010 |
| Essential Adventure Limited | Administrative & support | 2005 |
| Essential Appointments Limited | Administrative & support | 2017 |
| Essential Crew Solutions Ltd | Manufacturing | 2019 |
| Essential Dental Limited | Health & social care | 2006 |
| Essential Engineering Associates Limited | Professional & scientific | 2003 |
| Essential Flooring Limited | Construction | 2024 |
| Essential Health Colonics Limited | Health & social care | 2011 |
| Essential In-It Ltd | Other services | 2017 |
| Essential Ingredient Agency Limited | Hospitality | 2004 |
| Essential OIL LAB Limited | Wholesale & retail | 2023 |
| Essential Peptides Ltd | Wholesale & retail | 2026 |
| Essential Services and Solutions Holdings Ltd | Water & waste | 2011 |
| Essential Services Organisation Limited | Health & social care | 2021 |
| Essential Valeting Ltd | Wholesale & retail | 2024 |
| Essentialsco Ltd | Real estate | 2023 |
| Essentialstayz Ltd | Real estate | 2023 |
| Essex Associates Ltd | Professional & scientific | 2015 |
| Essex Schools (Woodlands) Limited | Education | 2012 |
| Essex Schools Holdings (Woodlands) Limited | Education | 2012 |
| Essilor Limited | Manufacturing | 1965 |
| Esta Cleaning Services Ltd | Administrative & support | 2022 |
| Esta VEZ Limited | Construction | 2010 |
| Estate Agency Signs (North Bristol) Ltd | Administrative & support | 2019 |
| Estate Legal Limited | Administrative & support | 2017 |
| Estate Serendipity Ltd | Real estate | 2024 |
| Estate Surveys Limited | Professional & scientific | 2009 |
| Estatico Limited | Extraterritorial | 2025 |
| Estcourt House Consulting Limited | Other services | 2017 |
| Este Kitchen Limited | Hospitality | 2024 |
| Este Medical Group (Bristol) Ltd | Health & social care | 2023 |
| Este Place Ltd | Hospitality | 2015 |
| Esteban Investments Limited | Real estate | 2013 |
| Esteka Ltd | Wholesale & retail | 2025 |
| Estemoa OT Ltd | Health & social care | 2025 |
| Esteves Mills Ltd | Professional & scientific | 2023 |
| Estia Limited | Professional & scientific | 2001 |
| Estimbeauty Limited | Other services | 2026 |
| Eston Consulting Limited | Professional & scientific | 2008 |
| Estover Energy Services Ltd | Professional & scientific | 2025 |
| Estrada Developments Ltd | Construction | 2024 |
| Estrella DE LA Tienda Limited | Wholesale & retail | 2026 |
| Estuary Fine Bespoke Furniture Limited | Manufacturing | 2015 |
| Estuary House (Freehold) Limited | Households | 2011 |
| Estuary House RTM Company Limited | Households | 2012 |
| Estune Property Management Limited | Real estate | 2010 |
| Estune Services Ltd | Information & communication | 2015 |
| ESW Construction Services Ltd | Construction | 2019 |
| ESW Properties Limited | Real estate | 2007 |
| ET Cetera Legal Limited | Professional & scientific | 2021 |
| ET Ceteris Limited | Professional & scientific | 2013 |
| ET Electrical Services (SW) Limited | Construction | 2019 |
| Et&C Swiss Limited | Administrative & support | 2009 |
| Etaba Consulting Ltd | Professional & scientific | 2013 |
| ETC South Ltd | Professional & scientific | 2020 |
| Etch Designs (Bristol) Limited | Other services | 2003 |
| Etch-It Ltd | Manufacturing | 2003 |
| Etechnique Ltd | Information & communication | 2017 |
| Eterna Aesthetic Limited | Health & social care | 2024 |
| Eternal Adventures Limited | Administrative & support | 2025 |
| Etex Building Performance Limited | Manufacturing | 1987 |
| Etex Holding UK Insulation Limited | Professional & scientific | 2005 |
| Etex UK Insulation Limited | Manufacturing | 1987 |
| ETG Group Ltd | Financial services | 2023 |
| ETH Ltd | Professional & scientific | 2018 |
| Ethereal DEV Ltd | Information & communication | 2022 |
| Ethereal Technologies Limited | Information & communication | 2018 |
| Ethereal Wave Network Services Ltd | Information & communication | 2014 |
| Ethi-Call Limited | Administrative & support | 2007 |
| Ethical British Timber Ltd | Agriculture & fishing | 2022 |
| Ethical Burials Limited | Real estate | 2016 |
| Ethical Equity Limited | Financial services | 2019 |
| Ethical Event Staffing Ltd | Administrative & support | 2015 |
| Ethical Homes Limited | Real estate | 2013 |
| Ethical Property Holdings SW Ltd | Real estate | 2018 |
| Ethical Shop Limited | Information & communication | 2011 |
| Ethical Vending Ltd | Wholesale & retail | 2023 |
| Ethicate Ltd | Hospitality | 2022 |
| Ethiq AI Ltd | Information & communication | 2026 |
| Ethoken Car Rental Ltd | Financial services | 2024 |
| ETJ English Ltd | Education | 2020 |
| Etlium Data Ltd | Information & communication | 2023 |
| Etloe Limited | Transport & logistics | 1964 |
| ETM Recycling Limited | Water & waste | 2009 |
| ETM Roofing & Guttering Ltd | Construction | 2025 |
| ETP Property Consultants (South West and Wales) Limited Liability Partnership | | 2018 |
| ETR Family Investment Limited | Real estate | 2022 |
| Etradia Private Limited | Wholesale & retail | 2025 |
| Etradius Private Limited | Wholesale & retail | 2025 |
| Etre WHO YOU ARE Limited | Wholesale & retail | 2023 |
| Etrend 6 Limited | Hospitality | 2013 |
| ETS (EPE) Limited | Administrative & support | 1993 |
| ETS (FM) Limited | Real estate | 2014 |
| ETS (SW) Limited | Construction | 2000 |